quantmodel — Refresh GTT Original ITD verification + report after endpoint recovery

Objective

Refresh GTT Original ITD verification + report after endpoint recovery.

Notes: GTT Original ITD refresh passes: 384 overlap months, corr 0.9644, ours/AS CAGR 12.41%/13.37% (delta -0.96%); report/catalog refreshed. Findings: gtt-original-refresh-t203.md.

Approach

Reuses existing report research/findings/gtt-original-refresh-t203.md — tables/metrics preserved verbatim via source_report pointer. Body below summarizes grounded evidence from that report and adjacent artifacts.

Files / code / data changed

No commit SHA confidently associated with t203 in sampled log [reconstructed — uncertain].
Source report: research/findings/gtt-original-refresh-t203.md
Task-history entry: research/findings/task-history.json#t203

Results

Conclusions and metrics are in research/findings/gtt-original-refresh-t203.md; see detail page for preserved tables/metrics.

Conclusions

GTT Original ITD refresh passes: 384 overlap months, corr 0.9644, ours/AS CAGR 12.41%/13.37% (delta -0.96%); report/catalog refreshed. Findings: gtt-original-refresh-t203.md.

Problems / follow-ups

See source report or PR discussion for follow-ups. No unsupported follow-ups fabricated.